Alternating gearing.



No. 852,394. I PATENTED APR. 30, 1907.

M. L. MOSES.

ALTBRNATING GBARING.

APPLIOATION FILED 001. 31, 1905.

imilllllillllllllll I 1n: NORRIS PITERS cm. WAsHmaroN, 0 c4 MERTON L. MOSES, OF

PORTLAND, OREGON.

ALTERNATING (BEARING.

Specification of Letters Patent.

Patented April 30, 1907.'

Application filed October 31,1905. Serial No. 285.332.

To a/Z/I whom it may concern:

Be it known that I, MERTON L. Moses, a citizen of the United States, and a resident of Portland, in the county of Multnomah and State of Oregon, have invented a new and useful lm )rovement in Alternating Gearing, of which t 10 following is a specification, reference being had to the accompanying drawings as constituting a part thereof.

My invention has for its immediate object to provide amotor attachment for baby-carriages, which motor shall be so contrived as to cause the carriage to run a predetermined distance back and forth, for the purpose of imparting to the carriage the same motion as if being run about, but confining the to-andfro travel thereof to the limits allowed by the porch, room or walk. And incidentally my motor attachment is also serviceable for propelling vehicle-like toys of all descriptions; also for washing machines, and other con trivances where a limited reciprocating movement or travel is desirable.

I attain my object by the devices illustrated in the accompanying drawings of which Figure 1 is a longitudinal section on a line a;a: of Fig. 2 showing a baby carriage in outline, mounted on a running gear embodying my invention Fig. 2 is a bottom view of said running gear, the front wheels being omitted; Fig. :3 shows, on a larger scale, a section of the under side of the top board 5 of the body of the running gear, and parts of the intermittent power transmitting devices; Fig. 41 is an inverted longitudinal section, corresponding with Fig. 3, taken on a line pointed by the arrow a, except this figure also shows the pinion 35 and bearings therefor omitted from preceding figure Fig. 5 is a partial longitudinal section showing some of the power transmitting devices and the guidebars in which slides the cross-head 30 which pivotally connects the rack-bar 29 with the rack frame 26; t ig. 6 is a partial cross-seetion of Fig. 5 on line pointed by arrow b; Fig. 7 is a partial cross-section of Fig. 5 on a line pointed by arrow 0, looking back; Figs. 8 and 9, taken together, show a modified means for transmitting the power from the driven shaft, 37, to the rear wheels of the carriage at variable speed; Fig. 10, like F ig. 3, shows a section of the underside of the top board 5 of the body of the running gear, and a part of the power transmitting devices, but the rack-frame, the guide-platel therefor, and co-operating parts are of different construction; the purpose of this figure being merely to illustrate a possible variation in form of these parts of the power-transmitting devices; Fig. 11 is an inverted longitudinal section corresponding to the preceding figure, except that it also shows the pinion 35 and bearings thereof, omitted from preceding figure; Fig. 12 is a transverse section taken on the line pointed by the arrow d in Figs. 10 and 11, except that the guide plate 57 is for convenience, shown as crosssectioned immediately in front of the standard 27; Fig. 13 is a eross-section of Figs. 10 and 11 on a line pointed by the arrow 0, and the cross-head 30, and guide 31 is also shown in broken outline to more comprehensively connect the parts; Fig. 1 1 shows a longitudinal section of the train of power storing and generating springs 10, Fig. 15 is an elevation of the front face of one of said springs and its housing or case; Fig. 16 is a detail of the means for holding the springs wound up to store the power thereof; Fig. 17 is a detail of the means provided for locking the arm 36 in variable positions, to vary the speed transmitted bythe train of gears 512; Fig. 18 is a sectional detail of the spring-bolt mechanism for locking the arm 36 in place.

The numerals designate the parts referred to in the drawings.

The body 1 of the carriage may be of any convenient shape. It is shown as mounted on the body 2 of the running gear by intermediate springs 3, .1. Said body 2 of the running gear comprises a top-board 5, and sides 6, 7. The latter have portions (6 7) cut away to allow access to the adjustable parts of the running gear. To the underside of the top-board 5 of the body 2 are attached standards 8 supporting the rear wheels. The axle of the front wheels, (not shown) is ournaled in standards 9, which are a'l'lixed on the exterior of the walls 6, 7.

The propelling power is obtained from a train of springs 10. Of course a single spring may also be used. In the latter case one end of the spring 11 (see Fig. 1 1) would be fixed to its case 12 and the other end (13) would be fixed to the shaft 14, which shaft is journaled in standards 15, 16, 16, (see Fig. 2,) and has a squared end, 14, adapted to receive a key 17 to wind the spring. The case 12 (see Fig. 14) is fixed to the standard 15 by a bolt 18. When the train of springs is used as shown in the drawings, the described arrangement would apply to the spring 11*, and the case 12 of said spring would be made with a projecting sleeve 19 which is inserted in the box 12 of the spring 11 and the two ends of the latter would be attached to its box 12 and the sleeve 19. The arrangement of the last member of the train springs would be the same as that of the intermediate spring, but the box of the last spring would be secured against rotation by means of a bolt (18) substantially as shown in Fig. 14. The describedarrangement being designed to allow the respective members of the train of springs to act in conjunction with each other, and prolong the application of the motive power.

On the forward end of the shaft 14 is loosely mounted a beveled gear 20 shown only in Fig. 2. In the concavity of the latter is rigidly mounted on the shaft 14 a ratchet-wheel 20 and a pawl and spring 21, 21 as shown in Fig. 16, to co-act with the ratchet-wheel 20 and hold the spring or train of springs in a wound-upstate. The beveled gear 20 meshes with a gear 22 j ournaled in a standard 23. The gear 22 is made with peripheral cogs and crown beveled cogs as shown in Fig. 2. The peripheral cogs of the gear 22 mesh with a pinion 24, which meshes with'a smaller pinion 25 and the latter meshes with a reciprocating rack-frame 26. One end of the shaft of the pinion 25 is journaled in a standard 27, and the latter is made with a guide-head 28, in which slides the rack-bar 29. See Figs. 5 and 7. The inner ends of the raok-frame 26 and the rack .b ar 29 are jointedly connected by a pin 30 inserted through inner perforated ends of the rack-frame 26 and the rack-b ar 29, the whole constituting a cross-head sliding in longitudinally arranged guides 31, 32, the lower of which is affixed to brackets33. See Fig. 6.

The reciprocating motion of the rack-bar 29 is confined to a straight line by the guidehead 28 of the standard 27, while the reciprocating motion of the rack-frame 26 is elliptical in its character, being made with a pin 26, which causes said rack-frame to follow the contour of the edge of the guide-pl ate 34. See Fig. 5.

I t is convenient to make the gi:iideplate 34 with a flange 34", so that the guide pin 26 of the rack-frame 26, will have an even surface to slide on.

YVith the rack-b ar 29 meshes a gear 35, the shaft 37 of which gear is j ournaled in standards 38. On the near end of the shaft 37 is mounted a pinion 39. (See Figs. 1 and 2). There is also pivotally mounted on the shaft 37 a bifurcated arm 36, in the short end of which arm is journaled a pinion 4]., meshing with the pinion 39; and through the gear 41 the motive power is transmitted to a. train of gears 42 arranged to revolve the axle of the rear wheels of the carriage. The arm 36 and able laterally on the shaft 37, and so arranged that the rotation of the shaft 37 is transmitted to the pinion 39, for which purpose the shaft is made with a longitudinal slot and the eye of the pinion 39 is made with a spline sliding in said slot. This arrangement being common, I have not illustrated the same.

The object of making the arm 36 movable as described is to be able to throw the gear 41, carried by said arm into mesh with either the larger or the smaller of the gears 43 so as to vary the length of travel of the vehicle. The gears 43 are fast on a shaft 43" journaled in standards 44.

The extremity of the long end of the arm 36 is provided with a spring bolt oontrivance or lock 36 shown in Fig. 18, consisting of a bolt 40 provided with a collar 46, a hook end 40, and controlled by a spring 45. The lock 36 is adapted to be secured to a stepped bracket 47, fastened to the top board 5, as shown in Fig. 17, and made with slots 48 through which to insert the hook member 40 of the bolt 40. By moving the lock 36 from one to the other of the steps of the bracket 47 the arm 36 will be adjusted to throw the pinion 41 into engagement with either the larger or smaller of the gears 43, (see Fig. 2 or out of contact with both, thereby inter power. Of course the axle 43 may be substituted by the driven shaft on which are mounted the hind wheels of the vehicle 0 other operated device.

From the described arrangement and cooperation of the devices comprised in my mechanism it will now be clear that the rotation of the shaft 14 (see Fig. 2) will be communicated through intermediate devices to the longitudinal reciprocating member 29 and that the latter will revolve the pinion 35 intermittingly, first in one direction and then the other, and that the rotation of said pinion 35 is communicated through its shaft and cooperating devices to the driven contrivance causing the latter to run in alternating direction in correspondence with the rotation of the pinion 35.

The power generating springs 10 may of course be substituted by other motive means such, for example, as a gasolene engine or motor, where my mechanism is to be applied lngs.

The ends 26 of the rack-frame 26 are adapted to cause a short period of rest in the rotation of the pinion 35 so as to allow for the alternating of the direction of travel of the rack-bar 29. The are of the ends 26 of said rack-frame may be varied as convenient in increasing or diminishing the intermittent period of rest of the pinion 35.

To equalize the speed of the transmitting power during the interval that the pinion 25 the gears 39, 41, therein journaled are movis in engagement with the ends 26 of the rupting the transmission of the motive 5 for other purposes than shown in the drawrack frame 26, and the pinion 35 is at rest, I provide governing contrivances as shown in Fig. 2. The same consists of a shaft j ournaled in standards 62, 62" and carrying on its left end a beveled gear 64, meshing with a compound gear 63, which comprises peripheral cogs meshing with the peripheral cogs of the gear 22, and beveled cogs meshing with said beveled gear 64, and on the right extremity of the shaft 65 is a pinion 66, meshing with a pinion 67 fast on the shaft 68, journaled in bearings 62 and 73, on which shaft the governor 69 is mounted. The governor 69 comprises a sleeve 69 on which is rigidly mounted a disk 7] which is adapted to bear against the vertical plate 70, when the ball arms of the governor are thrown outward by the developed speed. The disk 71 may also be thrown. against the plate by means of the lever 74, pivoted in a bracket 72, the outer end of which lever 74 is held in its adjusted position by a rack-bar 75, so that the motor may be locked or braked against action.

The means illustrated in Figs. 10 to 13 for converting the power into an intermittent re ciprocating motion operate substantially like those previously described. In fact the only difference is the rack-frame 26 shown for example in Figs. 2 to 4, which rack-frame is made with interior rim cogs is substituted by a rack-frame 56 having exterior rim cogs which meshes with a two part pinion 58 58 taking the place of the pinion 25. It is to be noted however that the upper end of the shaft of the pinion 58 is not ournalcd in the bracket 27 the said shaft being journaled only at its lower end in a box 59; for the member 56 of the rack-frame must pass between the head 28 of the bracket 27 and the crown of the pinion 58 during the reciprocating travel of the rack-frame 56, and the guide frame 57 is made of corresponding contour, and with an interior flange 57 for the pendent pin 56 to travel on. The guide frame 57 is fastened by its ears 57 b to the top board 5. The operating poweris transmitted to the pinion 58 by a pinion 24, journaled in a box 60, and the other co-operating parts not described act just like in the former example.

In Figs. 8 and 9 I illustrate means for transmitting the motive power, at variable speed, of different construction than shown in Figs. 1 and 2. The gear 42 and the shaft thereof 8 corresponds with that shown in Fig. 1. On a shaft 51 j ournaled in standards 50, 50, corresponding with the standards 44 shown in Figs. 1 and 2, is rigidly mounted a stepped gear 49 meshing with three gears of graded sizes 53, 54, 55 loosely journaled on the section 37 being an integral part of the shaft 37; and said shaft 37 is conveniently journaled in bearings 52, 52 shown in Fig. 8, and bearing or standard 38 shown in Fig. 2, the bearing 52 substituting the other bearing 88 shown in Fig. 2. The shaft section 37 has a longitudinal slot 64 in which slides a gib key 62. The eyes of the gears 53, 54, 55 have also slots through which to move the web or lug-member 63 of the key 62. By adjusting the key 62, one of the gears 53, 54, 55 is made to revolve with the shaft 37 and transmit the power thereof while the others will be mere idlers. In the last described arrangement the arm 36, its co-operating devices and the stepped standard 47 would, of course, be omitted.

hat I claim is:

'1. In an alternating limited motor mechanism, the combination of a driven gear, a rack frame in engagement with and reciprocated by the rotation of such gear, a rack bar pivoted to the rack-frame, guiding means holding the rack bar parallel to and in the longitudinal path of the rack-frame; a guide plate, and means carried by the rack-frame co-operating therewith, whereby the rackframe is caused to travel on a transverse, curved path at the end of each longitudinal movement and in so doing causing the rack bar to have an interval of rest at the end of each longitudinal movement; a gear driven by the reciprocation of the rack bar, and means for transmitting the power of such gear.

2. In an alternating limited motor mechanism, the combination of a driven gear, a rack-frame in engagement with and reciprocated by the rotation of such gear, a rack bar pivoted to the rack-frame, guiding means holding the rack bar parallel to and in the longitudinal path of the rack-frame; a guide plate, and means carried by the rack-frame co-operating therewith, whereby the rackframe is caused to travel on a transverse, curved path at the end of each longitudinal movement and in so doing causing the rackbar to have an interval of rest at the end of each longitudinal movement; a gear driven by the reciprocation of the rack-bar, means for transmitting the power of such gear, and means adapted to control the speed of the driving clement during the interval the rackframe is traveling on its transverse path.

3. In an alternating limited motor mechanism, the combination of a driven gear, a rack-frame in engagement with and reciprocated by the rotation of such gear, a rackbar, and guiding means holding the same parallel to and in the longitudinal path of the rack-frame, such rack-bar being pivoted to the rack-frame and rcciprocated thereby, a guide pin on the base of the rack-frame and a guide plate made with a flanged rim adapted to guide the rack-frame, by its said pin, on a longitudinal course during a part of its travel and on a transverse curved path at the end of each longitudinal movement, and thereby to cause the rack-bar to have a diminishment in speed, and an interval of rest at the end of ilk each longitudinal movement, a gear driven by the reciprocation of the rack-bar, and means for transmitting the power of such gear.

4. An alternating limited motor mechanism, comprising a supporting base, driven devices, a driving element, a primary gear driven thereby, a rack-frame in engagement with and reciprocated by the rotation of such primary gear, a rack-bar pivoted to the racki'rame, guiding means holding the rack-bar parallel to and in the longitudinal path of the rack-frame; a guide-plate, and means carried by the rack-frame (to-operating therewith whereby the rack-frame is caused to travel on a transverse, curved path at the end of each longitudinal movement and in so doing causing the rack-bar to have an interval of rest at the end of each longitudinal movement; a secondary gear driven by the reciprocation of the rack bar, means for transmitting the power of such secondary gear to the driven devices, and governor controlling the driving element.

5. An alternating limited motor mechanism, comprising a supporting base, driven devices, a driving element, a primary gear driven thereby, a racloframe in engagement with and reciprocated by the rotation of such primary gear, a rack-bar, guiding means holding the same parallel to and in the longitudinal path of the rack-frame, such rack-bar being pivoted to the rack-frame and reciprocated thereby, guiding means for the racl1- frame adapted to cause the same to travel on a transverse curved path at the end of each longitudinal movement, so as to cause the rack-bar to have a diminishment in its speed and an interval of rest at the end of each longitudinal movement, a secondary gear driven by the reciprocation of the rack-bar, means for transmitting the power of such secondary gear to the driven devices, and means adapted to control the speed of the driving element during the interval the rack-frame is traveling on its transverse path.

In testimony whereof, I have hereunto aflixed my signature in the presence of two witnesses.

MERTON L. MOSES.

Vitnesses:

T. J. GEIsLER, ALPHA A. TURNER. 

